package com.atguigu.oss.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.atguigu.oss.service.OssService;
import com.atguigu.oss.utils.ConstantPropertiesUtils;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;

/**
 * @author ysjstart
 * @create 2021-03-23 15:41
 */
@Service
public class OssServiceImpl implements OssService {
    //上传头像到oss
    @Override
    public String uploadFileAvatar(MultipartFile file) {
        // 工具类获取值
        String endpoint = ConstantPropertiesUtils.END_POIND;
        String accessKeyId = ConstantPropertiesUtils.ACCESS_KEY_ID;
        String accessKeySecret = ConstantPropertiesUtils.ACCESS_KEY_SECRET;
        String bucketName = ConstantPropertiesUtils.BUCKET_NAME;

        try {
            // 创建OSS实例。
            OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
            //获取上传文件输入流
            InputStream inputStream = file.getInputStream();
            //获取文件名称
            String fileName = file.getOriginalFilename();

            //1 在文件名称里面添加随机唯一的值
            String uuid = UUID.randomUUID().toString().replaceAll("-", "");
            fileName = uuid + fileName;

            //2 把文件按照日期进行分类
            //获取当前日期  2021/03/23
            String datePath = new DateTime().toString("yyyy/MM/dd");
            //拼接
            fileName = datePath + "/" + fileName;

            //调用oss方法实现上传
            ossClient.putObject(bucketName, fileName, inputStream);

            // 关闭OSSClient。
            ossClient.shutdown();

            //把上传之后的文件路径返回，需要把上传到阿里云oss路径手动拼接出来
            //https://guli-study-ysj.oss-cn-qingdao.aliyuncs.com/2021/03/23/e1af14eefm%3D26%26gp%3D0.jpg
            String url = "https://" + bucketName + "." + endpoint + "/" + fileName;
            return url;

        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }
}
